Mark, you are correct, in the sense that whenever a heavy lift chopper crashes, invariably the casualties are high. The IDF also used the French Super Frelon, obviously those were many years ago, in fact when I was in the paratroops we jumped from the French made Nord aircraft. Imagine our delight when our parachutes which were French were finally changed to the larger US made version. Since you are a military buff, I thought you would appreciate some history. My first impression of the Yasur (CH-53) was one of amazement, it sure beat whatever other choppers we had in the IDF, I will always remember the Yasur in the same way as the Vietnam Vets remember the "Jolly Green". For the Yasur was the machine that always made it to the zone no matter how complicated the situation/weather. Have a nice day.
from the article: Yasur helicopter: A history of splendid service - and deadly collisions